<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript">
			f1();
			console.log(c);
			console.log(b);
			console.log(a);

			function f1() {
				var a = b = c = 9;
				console.log(a);
				console.log(b);
				console.log(c);
			}
		</script>
	</head>
	<body>
	</body>
</html>
